package cn.itcast.n4.deadLock.v1;/**
 * @author yd
 * @date 2022/3/20 19:52
 * @version 1.0
 */

import cn.itcast.utils.Sleeper;
import lombok.extern.slf4j.Slf4j;

@Slf4j(topic = "w.TestDeadLock")
public class TestDeadLock {

    public static void main(String[] args) {
        Chopstick c1 = new Chopstick("1");
        Chopstick c2 = new Chopstick("2");
        Chopstick c3 = new Chopstick("3");
        Chopstick c4 = new Chopstick("4");
        Chopstick c5 = new Chopstick("5");
        new Philosopher("苏格拉底", c1, c2).start();
        new Philosopher("柏拉图", c2, c3).start();
        new Philosopher("亚里士多德", c3, c4).start();
        new Philosopher("赫拉克利特", c4, c5).start();
//        new Philosopher("阿基米德", c1, c5).start();
        new Philosopher("阿基米德", c5, c1).start();

    }



}

class Chopstick {
    String name;

    public Chopstick(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Chopstick{" +
                "name='" + name + '\'' +
                '}';
    }
}

@Slf4j(topic = "w.Philosopher")
class Philosopher extends Thread {
    Chopstick left;
    Chopstick right;

    public Philosopher(String name, Chopstick left, Chopstick right){
        super(name);
        this.left = left;
        this.right = right;
    }


    public void eat(){
        log.debug("eating");
        Sleeper.sleep(1);
    }

    @Override
    public void run() {
        while (true){
            //获得左手筷子
            synchronized (left){
                //获得右手筷子
                synchronized (right){
                    eat();
                }
            }


        }
    }
}